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Peter: What color are they?
Mike:
Peter: How are they?
Mike:
Peter: I love to eat salt and sweet apples.
Mike: Here is an apple for you.
Peter: OK, thank you.
Mike:
| A．I have some apples. | B．I have some pears. |
| A．They are black. | B．They are red. |
| A．They are sweet and sour. | B．They are long and big. |
| A．Look at it. | B．Taste it. |
| A．You are welcome. | B．I’m fine. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
